PLEASE HELP PLEASEEEE

Given data:

The height of object is h₀=10.0 cm.

The object distance is u=6 cm.

The image distance is v=-2.00 cm.(negative because the image is behind the mirror)

The focal length can be calculated by the mirror's formula as,

Thus, the focal length of the mirror is -3.00 cm.

Answer:

The below diagram shows pure spectrum with white light

Explanation:

Answer:

A measurement of low pressure means that warm air is rising and cooling down, which causes stormy weather.

The distance traveled by the electron within the electric field is 0.051 meters.

To calculate the distance traveled by the electron within the electric field, we need to determine the acceleration of the electron first.

The given equation is:

F = qE

where

F = force,

q = charge of the electron,

E = electric field intensity.

The electric force is also related to the acceleration (a) of the electron through Newton's second law:

F = ma

Since the mass of an electron is approximately 9.11 x \(10^{-31\) kg, we can rewrite the equation as:

ma = qE

The acceleration of the electron:

a = (qE) / m

The charge of an electron, q, is equal to the elementary charge, e, which is approximately 1.6 x \(10^{-19\) C.

Substituting the given values:

a = 1.6 x \(10^{-19\) C) * (135 V/m) / (9.11 x \(10^{-31\) kg)

The acceleration of the electron:

a = (11.6 x \(10^{-19\) C) * (135 V/m) / (9.11 x \(10^{-31\) kg)

≈ 2.36 x \(10^{13\) m/s²

The distance traveled by the electron can be calculated using the kinematic equation:

v² = u² + 2as

where

v = final velocity,

u = initial velocity (2.4 x \(10^6\) m/s),

a = acceleration,

s = distance traveled.

Since the electron comes to a halt, the final velocity is zero (v = 0). Therefore, the equation becomes:

0 = (2.4 x \(10^6\) m/s)² + 2 * (2.36 x \(10^{13\) m/s²) * s

Solving for s:

(2.4 x \(10^6\) m/s)² = -2 * (2.36 x \(10^{13\) m/s²) * s

s = [(2.4 x \(10^6\) m/s)²] / [2 * (2.36 x \(10^{13\) m/s²)]

≈ 0.051 m

Therefore, the distance traveled by the electron within the electric field is approximately 0.051 meters.

know more about electric field here:

https://brainly.com/question/19878202

#SPJ8

The material is at its phase change temperature and the thermal energy is going to change the phase instead of increase the temperature.

Latent heat is defined as the thermal energy absorbed or released during a phase change of a substance.

Latent heat can also be explained as the energy in hidden form which is supplied or extracted to change the state of a substance without changing its temperature.

From the above explanation, we can conclude that, the material is at its phase change temperature and the thermal energy is going to change the phase instead of increase the temperature.

Learn more about latent heat here: https://brainly.com/question/87248

Answer:

im not 100 percent but its probably 2 turtles 20m apart

Answer:

all the details are in the attached picture, the answers are marked with colour.

Julianna's resultant displacement when she walks 10 meters East, and 15 meters South and 20 meters North is 11.18m North-East.

displacement can be defined as distance in a specified direction.

To calculate the resultant displacement of the Julianna, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Julianna's resultant displacement is 11.18 m North-East.

Learn more about displacement here: https://brainly.com/question/28370322

#SPJ1

The percent error in approximating the number of seconds in a year is 0.45%.

Percent error is the difference between the experimental value and actual value and measures the accuracy of the result found.

The percent error is given by the formula,

Percent error = {(actual value- experimental value) / actual value} ×100

Here, the experimental value is π×10⁷.

And the actual value is, (365.24)(24)(60)(60) = 3.155×10⁷.

Substituting the values in the formula,

Percent error = {(3.155×10⁷ - π×10⁷) / 3.155×10⁷} ×100

Percent error = (0.015 / 3.155) ×100

Percent error =0.0045 ×100

Percent error = 0.45%

The percent error is 45%.

To know more about percent error, here

https://brainly.com/question/3105259

#SPJ4

Answer:potato cube is a more than a cube

Explanation:

petri dish is always better

Answer:

32J

Explanation:

Heat H = MC∆T = 4 × 1.0 × 8 = 32J

At 30°C, the rms speed of a sample of oxygen with a molar mass of 16 g/mol is approximately 482.34 m/s.

The root mean square (rms) speed of a gas molecule is a measure of the average speed of the gas particles in a sample. It can be calculated using the formula:

vrms = √(3kT/m)

Where:

vrms is the rms speed

k is the Boltzmann constant (1.38 x 10^-23 J/K)

T is the temperature in Kelvin

m is the molar mass of the gas in kilograms

To calculate the rms speed of oxygen at 30°C (303 Kelvin) with a molar mass of 16 g/mol, we need to convert the molar mass to kilograms by dividing it by 1000:

m = 16 g/mol = 0.016 kg/mol

Substituting the values into the formula, we have:

vrms = √((3 * 1.38 x 10^-23 J/K * 303 K) / (0.016 kg/mol))

Calculating this expression yields the rms speed of the oxygen sample:

vrms ≈ 482.34 m/s

For such more questions on speed

https://brainly.com/question/31380575

#SPJ8

The net force acting on the particle would be and the magnitude of the force would be -12.92i + 6.49j and the magnitude of the force would be 14.46 Newtons.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The net force on the particle = mass of the particle × acceleration

                                                =3.80*(−3.40i + 1.70j)

                                                = -12.92i + 6.49j

Thus, the magnitude of the net force on the particle would be 14.46 Newtons.

Learn more about Newton's second law, here

brainly.com/question/13447525

#SPJ1

The angular velocity in radians per second, given that Microwave ovens rotate at a rate of about 5 revolutions per minute (rpm) is 0.50 radians per second

The angular velocity (in radians per second) can be obtained by simply converting 0.08 revolution per second to radians per second. This is obtained as illustrated below:

1 revolution per second = 2π radians per second

Therefore,

0.08 revolution per second = 0.08 × 2π

Recall

Pi (π) = 3.14

Thus,

0.08 revolution per second = 0.08 × 2 × 3.14

0.08 revolution per second = 0.50 radians per second

Thus, we can conclude that the angular velocity (in radians per second) is 0.50 radians per second

Learn more about angular velocity:

https://brainly.com/question/30181154

#SPJ1

The superposition principle  used to calculate the electric field's strength at point P, which comes out to be 15 Q/oA.

The superposition principle states that the total electric field at a point is equal to the vector sum of the electric fields due to each individual charge at that point.

In this case, we have five charges, each producing an electric field at point P, so the total electric field at P is:

E = (E1 + E2 + E3 + E4 + E5) = (5Q/εoA + 4Q/εoA + 3Q/εoA + Q/εoA + 2Q/εoA) = (15Q/εoA)

So the magnitude of the electric field at point P is 15 times the magnitude of the electric field due to a single charge.

If the magnitude of the electric field due to one charge is given by

E = Q/εoA,

then the magnitude of the electric field at point P is:

E = 15 * (Q/εoA) = 15Q/εoA

So the magnitude of the electric field at point P is 15Q/εoA.

For such more question on superposition

https://brainly.com/question/1289898

#SPJ4

The accurate statements that describe mechanical waves are: Mechanical waves require a medium , Mechanical waves transfer energy, Mechanical waves can be longitudinal or transverse, Mechanical waves can be categorized as compressional or shear waves, Mechanical waves obey the principles of reflection, refraction, and interference, Mechanical waves have measurable properties such as wavelength, frequency, and amplitude.

Mechanical waves are a type of wave that require a medium, such as a solid, liquid, or gas, to propagate. They are characterized by the transfer of energy through the oscillation or vibration of particles in the medium. Here are the accurate statements that describe mechanical waves:

1. Mechanical waves require a medium: This statement is true. Mechanical waves cannot propagate in a vacuum because they rely on the interaction of particles in a medium to transfer energy.

2. Mechanical waves transfer energy: This statement is true. Mechanical waves transport energy from one location to another as the particles of the medium vibrate or oscillate.

3. Mechanical waves can be longitudinal or transverse: This statement is true. Mechanical waves can exhibit different types of motion. In longitudinal waves, the particles of the medium oscillate parallel to the direction of wave propagation. In transverse waves, the particles oscillate perpendicular to the direction of wave propagation.

4. Mechanical waves can be categorized as compressional or shear waves: This statement is true. In a compressional wave, the particles of the medium undergo compression and rarefaction as the wave passes through. In shear waves, the particles move perpendicular to the direction of wave propagation, resulting in a sideways displacement.

5. Mechanical waves obey the principles of reflection, refraction, and interference: This statement is true. Mechanical waves can reflect off surfaces, change direction when passing through different media (refraction), and exhibit interference patterns when two or more waves interact.

6. Mechanical waves have measurable properties such as wavelength, frequency, and amplitude: This statement is true. Mechanical waves can be described by various properties. Wavelength represents the distance between two consecutive points in the wave, frequency is the number of wave cycles per unit of time, and amplitude is the maximum displacement of particles from their equilibrium position.

These statements accurately describe mechanical waves and their properties, highlighting the key characteristics of this type of wave propagation.

For more such information on: mechanical waves

https://brainly.com/question/26116832

#SPJ8

Answer:
0 joules

Explanation:

To calculate the internal energy of a substance, you need to know the substance's specific heat capacity and mass, as well as the temperature change it undergoes.

The internal energy of a substance is given by the equation:

Internal Energy = mass * specific heat capacity * temperature change

In this case, the mass of 4 moles of oxygen molecules is 32 grams (1 mole of any substance has a mass of 16 grams). The specific heat capacity of oxygen gas is 0.92 J/g*K.

To find the temperature change, you need to know the initial and final temperatures. If the initial temperature is 25 degrees Celsius, and there is no temperature change, then the final temperature is also 25 degrees Celsius. Therefore, the temperature change is 0.

Plugging these values into the equation, we get:

Internal Energy = 32 g * 0.92 J/g*K * 0 K = 0 J

So the internal energy of 4 moles of oxygen molecules at 25 degrees Celsius is 0 joules.

Answer:

Vo (vertical) = Vo sin 30 = 30 m/s / 2 = 15 m/s

Vo (horizontal) = Vo cos 30 = .866 30 m/s = 26 m/s

Explanation:

s=d/t

d=s×t

d=8×16.4

d=131.2

distance is 131.2m.

Answer:

model is viable if the assumptions that answer it are in accordance with the fundamental principles or laws of physics and if it gives conclusions that can be tested with experiments.

Explanation:

A model in physics must be verified by experiments that are carried out to measure the consequences derived from it.

A model is viable if the assumptions that answer it are in accordance with the fundamental principles or laws of physics and if it gives conclusions that can be tested with experiments. Models that meet these conditions are said to be viable

The magnitude of the force on the tooth is approximately 0.022 N.

To find the magnitude and direction of the force on the tooth, we can use Hooke's Law, which states that the force exerted on an object is directly proportional to the change in length of a material when it is stretched or compressed.

First, we need to calculate the strain (ε) of the stainless-steel wire.

Strain is defined as the change in length divided by the original length:

ε = ΔL / L₀

Given that the change in length (ΔL) is 0.10 mm \((0.10 \times 10^{-3} m)\) and the unstretched length (L₀) is 3.1 cm \((3.1 \times 10^{-2} m)\), we can calculate the strain:

\(\epsilon=(0.10 \times 10^{-3} m)/(3.1 \times 10^{-2} m)=0.003225\)

Next, we can use Young's modulus (E) to calculate the stress (σ) in the wire.

Stress is defined as the force per unit area:

σ = E * ε

Given that Young's modulus (E) for stainless-steel is 18 × 10¹⁰ N/m², we can calculate the stress:

σ = (18 × 10¹⁰ N/m²) * 0.003225 = 5.805 × 10⁸ N/m²

Now, we can find the force (F) on the tooth by multiplying the stress by the cross-sectional area (A) of the wire:

F = σ * A

The cross-sectional area (A) can be calculated using the formula for the area of a circle:

A = π * (d/2)²

Given that the diameter (d) of the wire is 0.22 mm\((0.22 \times 10^{-3} m)\), we can calculate the cross-sectional area:

\(A = \pi * (0.22 \times 10^-3 m / 2)^{2} = 3.802 \times 10^{-8} m^2\)

Finally, we can calculate the force:

\(F = (5.805 \times 10^{8} N/m^{2}) * (3.802 \times 10^-8 m^{2}) \approx 2.206 \times 10^{-2} N\)

Therefore, the magnitude of the force on the tooth is approximately 0.022 N.

Since the wire is stretched, the force is pulling the tooth in the direction opposite to the stretching.

For more questions on magnitude

https://brainly.com/question/24468862

#SPJ8

Newton's laws of motion describe the behaviour of objects when they are at rest or in motion.

The 5 lbs bag of sugar is at rest in this situation, and you are exerting a 5 lbs upward force on it. The sugar bag will continue to be at rest unless an outside force acts upon it, in accordance with the first law of motion. It is being subjected to an external force that you are applying.

According to the second law of motion, theforce exerted on the bag of sugar will have a direct proportional effect on how fast it accelerates. The mass of the bag of sugar is 5 pounds, and the force you are exerting on it is 5 lbs. Because\(\textsf{$\frac{\textsf{5 lbs (force)}}{\textsf{ 5 lbs (mass)}}$ = 1 (unit of accleration)}\), the bag of sugar will accelerate by 1 (unit of acceleration).

The third law of motion states that there is an equal and opposite reaction to every action. In this case, the sugar bag pushes down on your hand with a 5 lb force when you push up on it with a 1 lb force. The force you are providing to the bag of sugar will have an equal and opposite reaction here.

Therefore, this scenario illustrates all three of Newton's laws of motion

----------------------------------------------------------------------------------------------------------

Yes, this is an example of Newton's Third Law of Motion. Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. In this example, when you push upwards on the 5 lb bag of sugar with a force of 5 lb, the bag of sugar also pushes downwards on you with a force of 5 lb.In other words, the action is you pushing upwards on the bag of sugar and the reaction is the bag of sugar pushing downwards on you with the same amount of force. So, this is an example of Newton's Third Law of Motion.

a) La Distancia entre el telescopio y el satélite es aproximadamente \(8.602\times 10^{5}\) metros.

b) La señal sale del telescopio y se desplaza \(7\times 10^{5}\) metros en Dirección + x y \(5\times 10^{5}\) metros en Dirección +y.

a) Si asumimos la Posición del telescopio como el Origen de un Marco de Referencia, entonces la Distancia entre el telescopio y el satélite (\(d\)), en metros, mediante la siguiente expresión:

\(d = \sqrt{(S(x,y) - O(x,y))\,\bullet\,(S(x,y) - O(x,y))}\) (1)

Donde:

Si sabemos que \(O(x,y) = (0, 0)\) y \(S(x,y) = (7\times 10^{5}, 5\times 10^{5})\), entonces la Distancia entre el telescopio y el satélite es:

\(d = \sqrt{(7\times 10^{5})^{2}+(5\times 10^{5})^{2}}\)

\(d \approx 8.602\times 10^{5}\,m\)

Nota - (1) es una forma vectorial del Teorema de Pitágoras.

La Distancia entre el telescopio y el satélite es aproximadamente \(8.602\times 10^{5}\) metros.

b) La señal sale del telescopio y se desplaza \(7\times 10^{5}\) metros en Dirección + x y \(5\times 10^{5}\) metros en Dirección +y.

Invitamos a ver esta pregunta relacionada con Cálculo de Distancias: https://brainly.com/question/18209846

The average kinetic energy of the gas's molecules directly relates to its temperature. Faster moving particles will more frequently and violently hit the container walls. Because of this, the force acting on the container's walls increases, increasing the pressure.

To learn more about gas volume and temperature, refer to:

https://brainly.com/question/26141963

#SPJ9

When the volume of gas increased the KE of gases particles increases and hit the walls of container which increases the pressure on the walls .

What if gas will increase?

The gas expands in a closed container . The molecules strike and hit each other therefore the pressure at the walls increase.

According to ideal gas law , when volume is cnstant the Pressure and temperature both will increase.

to learn more about Gas laws click herehttps://brainly.com/question/17817006

#SPJ9

The components of vector C are: 25N in the horizontal direction and 43.30N in the vertical direction.

The vector can be broken down into two rectangular components (horizontal and vertical) using trigonometry:

The horizontal component is:

C_horizontal = C * cos(θ) = 50N * cos(60°) = 25N

The vertical component is:

C_vertical = C * sin(θ) = 50N * sin(60°) = 43.30N

Therefore, the components of vector C are: 25N in the horizontal direction and 43.30N in the vertical direction.

Learn more about vector here: https://brainly.com/question/25705666

#SPJ1

Explanation:

The torque exerted on the wrench is

\(\tau = Fd\sin{\theta} = Fd\)

since the force is applied perpendicular to the wrench, in which sin90 = 1. The torque then is

\(\tau = (185\:\text{N})(0.11\:\text{m}) = 20.35\:\text{N-m}\)

Answer:

  about 3.17647 hours

Explanation:

The appropriate relation is ...

  time = distance/speed

  time = (270 km)/(85 km/h) = 3 3/17 h ≈ 3.17647 h

It will take Derek about 3.17647 hours to drive the distance.

The quantity of heat energy that must be transferred to 2.25 kg of brass to raise its temperature from 20 °C to 240 °C is 195030 J

First, we shall list out the given parameters from the question. This is shown below:

The quantity of heat energy that must be transferred can be obtained as follow:

Q = MCΔT

= 2.25 × 394 × 220

= 195030 J

Thus, we can conclude quantity of heat energy that must be transferred is 195030 J

Learn more about heat:

https://brainly.com/question/16398667

#SPJ1